package com.xyd.filter;



import com.xyd.bean.User;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
@WebFilter({"/chat-room.html","/guestbook.jsp","/news-view.jsp",
"/roduct-list.jsp","/product-view.jsp","/shopping.html","/shopping.jsp",
        "/ListShoppingCar","/shopping-result.html"})
public class IndexFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest request= (HttpServletRequest) servletRequest;
        HttpServletResponse response= (HttpServletResponse) servletResponse;
        HttpSession session= request.getSession();

        User user= (User) session.getAttribute("user");
        if (user!=null){
            filterChain.doFilter(servletRequest,servletResponse);
        }else {
            response.sendRedirect("/login.html");
        }
    }

    @Override
    public void destroy() {

    }
}
